Slicing-machine.



PATENTED OCT. 8, 1907.

E A SBABURG s LIoING MAGHINB. APILICATION IfILED DEG. 29, 19.05.

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aow w A TTU/PNE Y S .l .m no E PATBNTED 00T. ,8, 1907.

No'. 367,844. E. SEABURG.

SLIG'ING MAGHINB.l

APPLICATION FILED DBO. 28.1905.

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PATENT OFFICE.

EDWARDA. SEABURG, OF SEATTLE, WASHINGTON.

sLIoING-MAGHINE.

Specification of Letters Patent.

Patented oct. s, 1907.

Application led December 28, 1906. Serial No. 293,623.

To all whom it may concern:

Be it known that l, EDWARD A. SnABURG,`a citizen of the`United States,and a resident of Seattle, in the county of King and State ofWashington, have invented a new 'and Improved Slicing-Machine, of whichthe following is a full,clear, and exact description.

The purpose of the invention is to provide a machine which whileespecially adapted for slicing bread may be used with equally goodresults for slicing vegetables, or any articles capable of being cut bya knife and of being fed to the knife, and to so construct the machinethat it will be light-running, compact, simple, durable l and economicin construction and capable of convenient4 operation by one individual.

Another purpose of thevinvention is to sd construct the machine that aneffective draw-cutting action will be continuously imparted to the knifewhile the machine is in operation, and so that the feed of the materialto the knife will be automatic and capable of adjustment to cut a thick,a medium or a thin slice.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth and pointed out inthe claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatevcorresponding parts in all the figures. Y

Figure 1 is a front elevation of the machine; Fig. 2 is a plan view ofthe machine; Fig. 3 is a side elevation of the machine, parts beingbroken away; 4 is a front elevation of a portion of the bed of themachine,

-illustrating the'application of a device for regulating the feed of thecarriage, a portion of the latter being shown in section; Fig. 5 is anenlarged vertical sec tional view of the said feed controllingmechanism, the section being taken practically on the line 5- 5 of Fig.4; Fig. 6 is a detail vertical section through a portion of the bed ofthe machine and the carriage, and a front elevation of the feedingdevice for the carriage; and Fig. 7 is an inverted plan view of aportion of the carrier.

A represents the frame of the machine, which at its front left-handportion is shown as provided with an extension Af, and the said frame isalso shown as upheld by suitable legs 10. At the left-hand side portionof the machine a drive shaft 11 is journaled in suitable bearings 12,-and at the rear end of the shaft 11 a crank 13 is secured, although theshaft -may be turned by power if so desired.- At the opposite or frontend of the drive shaft 11 a gear wheel 14 is secured, which gear wheelis shown as extending down below the under face of the bed of themachine through a suitable opening 15. The gear 14 is adapted to meshwith a pinion 16, and this pinion 1,6 is secured upon a short shaft 17mounted in a suitable bearing 18 at the rear portion of the extension A/of the frame; and at the rear end of said shaft a fly wheel 19 issecured, while at the opposite or front end .of the shaft a crank arm 20is fastened. A cam race .B is formed upon the front face ofthe wheel 14.This cam race is clearly shown in Fig. 1,

and is eccentric to the shaft 1l. Said cam race consists of two ribsections 21 and 22,v produced upon the aforesaid gear wheel 1,4. The ribsection 21 is .eccentric to the periphery of the gear and likewiseeccentric to the shaft 11, Aand comprises a regularly curved sidesection a and also a regularly curved opposing end sections a and a2,but the curvatureof the opposite side section is taken by carrying therib inward to form a point located about midway between the end sectionsa/ and a2. The inner rib section 22 of the said cam race B is Cshaped,and a point a4 at one of its limbs is the least distant from the driveshaft 11. The opening in the C-shaped rib 22 is opposite thepoint a3 onthe outer rib section 21; and furthermore in the construction of thiscam a switch point a5' is located within the rib 22 just opposite theopening in the said rib and likewise opposite the point a3.

An arm 23 in the form of a bar circular in cross section, is pivoted atits left-hand end 24 on a suitable post 25, and around the pivot pin 25a spring 26 is coiled, having bearing vagainst the under face of thesaid arm 23. The tendency ofthe spring is to elevate'v the right-hand orfree end of the said arm as is shownv in Fig. 1. i

A slide 27 in the form of a block has movement longitudinally of the arm23, and the said slide is provided with a key which enters a key-way 27u produced longitudinally in the right-hand end of the said arm 23, andthis slide 27 is connected by a link 28 with the crank arm 20 o n thedriven shaft 17, as isshown in Figs. 1 and 2.

The heel portion of a knife 29 is attached in any suitable or approvedmanner to'theslide 27, and the said knife 29 at its outer end portion ismadeto pass through and to have reciprocating motion aguide loop 30,located at the front right-hand end of the frame, being providedpreferably with, a slight curvature in direction of the left-handendthereof.

As the shaft 11 revolves through the medium of the slide 27, the link 28and the crank arm 20, the knife is given avery rapid reciprocatingmovement, and the knife is carried down for cutting action and iscarried up out of engagement with the material by the cam B in thefollowing manner: A block 31 is securely fastened to the arm 23 betweenits center and its free end, and this arm carries a pin 32 upon which afriction roller 33 is mounted, the said friction roller being adapted totravel in engagement with the inner faces of the rib sections 21 and 22ofthe cam. When the friction roller `is in the position shown in Fig. 1,the knife is at the height of its upward stroke, and as the by a spring50, as is shown in Fig. 6.

drive shaft l1 is revolved the said roller will travel down to the pointa, and will then enter the inner rib section 22 and when the roller hasreached about the point a4 on the said rib section the knife will havebeen carried down as far as necessary to have completely severed a slicefrom the object presented to it, and then as the friction roller 33continues to travel along the rib 22 and down along the end 0L2 and theside a, the knife will ascend until it will be again in its elevatedposition when the roller reaches the point a on the outer rib 2l.

A gridiron is located upon the bed of the machine at its right-handside, extending from front to rear, and this gridiron consists oflongitudinal bars 34 held above the said bed by connecting end pieces35, offset from yet attached to the bed. Between the said gridiron andthe bed, acarrier C has guided movement. The article to be sliced ismade to rest on the gridiron and is fed to the knife by the saidcarrier. The carrier usually consists of a series of longitudinal rods37, connected at their rear ends by a cross bar 36, the cross bar andthe rods being between the gridiron 34 and the bed; and the said rodsare adapted to pass out freely at the front of the frame.

The rods 37 are connected at the front by a cross bar 38, which when thecarrier is well back on the frame rests substantially against the frontportion of the frame, as is shown in Fig. l; and a leg 39 is carrieddown from the forward cross bar 3S, being provided with a frictionroller 40 at its lower end, whereby to support the carrier when itsforward end is carried out from the frame of the machine, as is shown inFig. 3. Each bar or rod 37 of the carrier` is provided with ratchetteeth 4l upon its under face, and the ratchet teeth of the various barsare of different lengths, so that vin connection with a` controllingmechanism to be hereinafter described, the carrier may be made to moveforward or toward the knife a greater or a less distance at eachoperation ofthe carrier, so as to control the thickness of the slice tobe cut; and at the forward end of the carrier a fender 42 is provided,which serves to support the cut slices.

Ahead plate 43 is carried up from the rear of the carrier as is shown inFigs. 2 and 3, and this head plate 43 is provided with an attachedhandle 44, whereby to draw the carrier back, and the said head plate isprovided with teeth 45 on its forward face, adapted to engage with theend of a loaf of bread for example, or an article to be cut. The carrieris fed forward by means of a cord 47, attached to an eye 46 extendingdown f rom the rear bar 3G, and this cord is passed aroundfa pulley 48secured to a shaft 49, which shaft is controlled The shaft 49 isjournaled in arms 5l, which extend down from the bed frame at itsforward portion as is shown in Figs. 3 and 6. The spring 50 tends tonormally draw the carrier outward, and the said spring is placed undertension as the carrier is drawn back.

The outward movement of the carrier C is regulated by a controllingmechanism, shown best in Figs. 4 and 5. This mechanism is as follows: Abar 52 is placed longitudinally at the front of the frame of themachine, below the forward end of the carrier C; and the said bar 52 isoffset from the said frame by means of brackets 53, utilized to securethe bar to the frame. This bar 52 is adapted as a vsupporting bar for ablock 54, which has sliding movement on the said bar 52; and this block54 is provided with a set screw 55, so that the block may be securedwherever desired on its supporting bar 52. A post 56 extends out fromthe forward portion of the block 54, and on said post a pawl D isloosely mounted. The said pawl consists of a horizontal body section 57,which is parallel with the supporting bar 52, and an upwardly-exte1nlingcontact arm 5S, adapted for eugagement with the tee'th 4l on any one ofthe rods Il? of the said carrier as is best shown in Fig. 5. ihatportion of the contact arm 5S which faces the straight portion of atooth is straight while the opposing face is more or less curved. ln thefurther construction of a pawl D a finger' 59 extends down from the bodybelow the pivot arm 58, and the said finger 59 at its lower end isprovided with an extension GO, which in one position is at right anglesto the said finger 59. The extension (i0 is hinged to the finger 59 insuch manner that while the extension maybe carried upward to assume moreor less of a vertical position, it cannot be carried downward below ahorizontal position as is clearly shown in Fig. 5. The contact arm 58 isnormally held in position to engage with the ratchet teeth of a rod orbar 37 by means of a spring'GO, which spring is best shown in Fig. 5,and is attached to a block 54 and has bearing on the body portion of thepawl D. A trip bar 6l is located below and in front of the supportingbar 52, and the rear face of the said trip bar Gl is more or lessrounded as is shown in Fig. 5, and is adapted for engagement with theup] )or rounded end portion of the extension (S0 from the finger 59.This rod Gl is provided with an eye (52 at each end, and these eyes 62loosely receive uprights (i3, which uprights G3 are attached to theframe by means of suitable brackets 63, as is shown in Figs. 3 and 5.Thus the trip bar 6l has free vertical movement on the uprights 63. Atthe central portion of the trip bar (il a downwardly-extending lip 64 isformed, and the trip bar 6l is lowered in the following manner: A rod(i5 is provided at its upper end with a crank section, which cranksection extends over the fixed block 33 on the arm 23, as is shownv inFig. 2 and the said rod (i5 is carried downward to a point below theframe as is shown in Fig. l, where said rod is attached to the end of alever arm 6G, which lever arm about centrally between its ends ispivoted to the bottom portion of the frame A by meansofa suitable pivotpinor stud (i7, and at the opposite or right-hand end of the said leverarm (i6 an elongated slot 68 is made. This elongated slot (i8 receives apin (39, extending out from the lip (Hoi the trip bar 6l. The lever arm6G is not altogether straight, as one portion is offset from the otherat its pivot point as is shown at 6(3| in Fig.

In the operation of this portion of the machine, when the arm 23 iscarried to an upper position as shown in Fig. l it lifts the rod (i5,and at such time the slotted end of the lever arm GG is carrieddownward, taking with it the trip bar 6l, which normally occupies ahigher position than that shown in Figs. 4 and 5, namely, a positionnearly at the upper end of its guide uprights 63; and as the said tripbar is carried down it engages with the extension G0 from the linger ofthe pawl D, and when the said finger has assumed the hori zontalposition shown by full lines in Fig. 5, the said bar 6l in its furtherdownward movement'. will cause. the

pawl D to rock on its pivot and carry the contact arm 58 thereof awayfrom the tooth of the carrier with which it was in engagement,permitting the spring 50 to pull the carrier forward the distance of onetooth, as by the time such a distance has been traversed the trip barwill have passed the extension 60 from the pawl. D, and the spring 60Lof the pawl will immediately act to bring the contact arm thereof inposition to engage with the next tooth, and at such time the arm 23 willhave commenced to descend, and the rod G5 will drop by gravity, and theWeight on the rod and the connected end of the lever will cause the tripbar GlY to be again carried to its normal position and act again as atrip for the pawl on the next rip-stroke of the said arm 23. The pawl Dby means of the 'block 54 can be moved for action in Yconnection withthe teeth of any one of the bars or rods 37.

While the feed mechanism that is shown is preferred, I desire it to beunderstood that I do not confine myself to the details thereof, as suchdetails may be changed without departing from the spirit of theinvention.

A fender 70 is located at the right-hand side of the machine, extendingfrom front to rear of the same, against which theV outer end or surfaceof the material to be sliced has bearing, and preferably in order thatmore or less pressure may be exerted on the article while being cut ifso desired, and without bringing the fingers of the hand in contact withthe article, l provide a finger piece 71 of spring material, located atthe forward end of the fender 70, which iingerpiece extends over thegridiron beneath which the carrier C travels. Thus while the operator isturning the shaft 11 with one hand the lingers of the other hand may beemployed to press the plate 71 downward more or less forcibly upon theobject being acted upon by the knife.

Having thus described my invention, I claim as new,

and desire to secure by Letters Patent,-

1. ln a slicing machine, a support, an arm pivoted for movement at itsfree end to and from the support, a knife having sliding connection withsaid arm. a driving mechanism for imparting reciprocating motion to theknife, and

connections between the said driving mechanism and saidarm for impartingsimultaneous vertical movement to the arm and therefore to the knife,

L. ln a slicing machine, a support, a pivoted arm, a block havingsliding and guided movementon the arm, a knife carried by said block, adriven shaft, means for reciprocating the block from the shaft, andmeans for impai'tinel an up and down movement to the arln from saidshaft.

In' a slicing machine, a support, a pivoted arm, a block having slidingrand guided movement on the arm, a knife carried by said block, a drivenshaft, means for reciprocating the block from the shaft, and a camoperated by the said shaft and operating the arm to impart au up anddown movement to the same,

4. In a slicing machine, a support, a tension-controlled arm pivoted formovement at its free end to and from the support, a knife mounted toslide upon the said arm, a drive shaft, a driven shaft, a gearconnection between the two shafts, the gear on the driven shaft beingthe smaller, a crank arm connected with the driven shaft, a linkconnection between said drive shaft and the knife whereby to impartrapid reciprocating motion to the knife, a cam carried by the gear ofthe drive shaft, and an extension from said arm, engaging said cam,whereby to `give a slow vertical movement to the said arm simultaneouslywith the rapid reciprocating motion of the knife.

.3. In a slicing machine, a support, an arm pivoted for movement at itsfree end to and from the support, a knife 'having sliding connectionswith the said arm, a driving mechanism, connections between the knifeand the driving mechanism for imparting reciprocatingr motion to theknife, connections between said driving mechanism and said arm forimparting simultaneous vertical movement to the arm, a reticulatedsupport for the article to be sliced, a carrier adapted to move the saidarticle toward the knife, and means for controllingthe outward movementof the said carrier by the movement of thesaid knife-carrying arm.

G, In a slicing machine, a support, an arm pivoted for movement at itsfree end to and from the support, a knife having sliding connection withsaid arm, a driving' mechanism, connections between the knife and thedriving mechanism for imparting reciprocating' motion to the knife, andconnections between said driving mechanism and said arm for impartingsimultaneous vertical Inovement to the arm, a carrier having slidingmovelnent on the support beneath the knife, the said carrier beingspringlcontrolled in an outward direction, ratchet teeth located on thecarrier, a springcontrollcd pawl for engagement with the said ratchetteeth, and a trip for the said pawl, automatically and periodicallyoperated by the movement of the said arm.

7. In a slicing machine, a support, an arm pivoted for movement at itsfree end to and from the support, a knife having` sliding connectionwith said arm, a driving mechanism, connections between the knife andth'e driving mechanism for imparting reciprocating motion to the knife,and connections between said driving mechanism andisaid arm forimparting simultaneous vertical movement to the arm, a gridiron locatedupon the said support, extending' beneath the said knife, a carriermounted to slide between the said support and the gridiron, anupwardly'extending toothed plate located at the rear end of the carrier,ratchet teeth formed upon the carrier, a tension device carried by thesupport and connected with the rear of the carrier, tending to force thesame outward, a spring-controlled pawl arranged for engagement with thesaid ratchet teeth to stop or limit the movement of the carrier, and atrip mechanism for the pawl, being timedly operated by the`knife-carrying arm.

8. In a slicing machine, a support, an arm pivoted for movement at itsfree end to and from the support, a knife having sliding connection withsaid arm, a driving mechanism, connections between the knife and thedriving mechanism for imparting` reciprocating motion to the knife, andconnections between said driving` mechanism and said arm forimpartingsimultaneous vertical movement to the arm, a gridiron locatedon said support beheath the said knife, a carrier mounted to slidebetween the said support and the knife, having` a plate at its rear endfor engagement with an article to be sliced, series of ratchet teethsecured to the said carrier, a slice support located at the forward endof the carrier, an adjustable spring-controlled pawl adapted forengagement with either set of ratchet teeth on the carrier to stop orlimit the outward movement of the carrier, a trip member for the saidpawl, and means for operating the trip member to disenthe pawl from theratchet teeth at the upward movement of the knife-carrying arm, atension device located beneath the said support, and a collapsibleconnection be tween the tension device and the rear end of the carrier,to automatically move the carrier outward when it is disengaged from thesaid pawl.

9. In a slicing machine, a support, a knife, a means for operating theknife, a carrier, a spring actuated device for feeding the carrierforward, a pawl and ratchety mechanism for holding the carrierstationary, and means for periodically disengaging the pawl from theratchet.

10` ln a slicing machine, a support, a knife, means for operating` theknife, a carrier, a spring actuated device for feeding the carrierforward, a pawl and ratchet mechanism for holding the carrierstationary, and means controlled by the movement of the knife forperiodically disengaging the pawl from the ratchet.

11` In a slicing machine, a support, a knife carrying arm, means foroperating the said arm, a carrier, a spring actuated device for feedingthe carrier forward, a pawl and ratchet mechanism for holding,- thecarrier stationary,

a trip mechanism for the pawl, and means for actuating the tripmechanism periodically from a knife carrying arln.

l2. In a slicing machine, a support, a knife, means for operating theknife, a carrier provided with a plurality of rows of ratchet teeth,means for feeding the carrier forward, an adjustable pawl for engagingeither row of ratchet teeth, and means for disengaging the pawl from theratchet teeth periodically.

13. In a slicing machine, a support, a knife, means for operating theknife, a carrier provided with ratchet teeth, means for feeding thecarrier forward, a pawl for engaging the ratchet teeth, a trip bar forengaging the pawl to disengage it from the ratchet teeth, and means foroperating the trip bar periodically.

14. In a slicing machine, a support, a, knife carrying arln, means foroperating said arln, a carrier provided with ratchet teeth, means forfeeding the carrier forward, a pawl for engaging the ratchet teeth ofthe carrier and provided with an extension, a, trip har for engaging theextension 01' the pawl to dis lgare it from the ratchet teeth, and meansfor operating the trip har troni the knife carrying arm.

ln testimony whereof l have signed in v naine te this specification inthe presence 0f two subscribing \\'i1nesser-:.

EDWARD A. SlflAlilllirl.

Witnesses z L. G. MeGUrnn, L. C. Snirn,

